Direct airborne and impact sound insulation of steel-framed floors for mid-rise constructions
Bibliographic record
Abstract
In a recent study at the National Research Council of Canada, the direct airborne and impact sound insulation of steel-framed floors were investigated. This study forms one part of a project focusing on the direct and flanking sound transmission in lightweight steel-framed buildings for mid-rise constructions. Mid-rise constructions (4 to 6 stories) using lightweight steel framing are becoming more and more common in North America. The floors investigated in this study consisted of 38 mm lightweight gypsum concrete on a corrugated steel deck, fastened to steel joists with a gypsum board ceiling. The parameters investigated included the joist depth and the configuration of the ceiling. In addition, the influence of various floor coverings was examined. The airborne sound transmission loss was measured according to ASTM E90, and the light impact sound insulation was measured according to ASTM E492. The results are presented and discussed.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.000 | 0.000 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.000 |
| Science and technology studies | 0.000 | 0.000 |
| Scholarly communication | 0.000 | 0.000 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".